Open Access Green as soon as Postprint is submitted to ZB.
Multiplex-GAM: genome-wide identification of chromatin contacts yields insights overlooked by Hi-C.
Nat. Methods 20, 1037-1047 (2023)
Technology for measuring 3D genome topology is increasingly important for studying gene regulation, for genome assembly and for mapping of genome rearrangements. Hi-C and other ligation-based methods have become routine but have specific biases. Here, we develop multiplex-GAM, a faster and more affordable version of genome architecture mapping (GAM), a ligation-free technique that maps chromatin contacts genome-wide. We perform a detailed comparison of multiplex-GAM and Hi-C using mouse embryonic stem cells. When examining the strongest contacts detected by either method, we find that only one-third of these are shared. The strongest contacts specifically found in GAM often involve ‘active’ regions, including many transcribed genes and super-enhancers, whereas in Hi-C they more often contain ‘inactive’ regions. Our work shows that active genomic regions are involved in extensive complex contacts that are currently underestimated in ligation-based approaches, and highlights the need for orthogonal advances in genome-wide contact mapping technologies.
Altmetric
Additional Metrics?
Edit extra informations
Login
Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Rna-polymerase-ii; Organization; Reveals; Principles; Dynamics
ISSN (print) / ISBN
1548-7091
e-ISSN
1548-7105
Journal
Nature Methods
Quellenangaben
Volume: 20,
Issue: 7,
Pages: 1037-1047
Publisher
Nature Publishing Group
Publishing Place
New York, NY
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Epigenetics and Stem Cells (IES)
Institute of Functional Epigenetics (IFE)
Institute of Computational Biology (ICB)
Institute of Functional Epigenetics (IFE)
Institute of Computational Biology (ICB)
Grants
NIDDK NIH HHS
Wellcome Trust
Wellcome Trust